William mason



(No Model.) W. MASON. MEANS FOR SEPARABLX ATTAGHING GUN BARRELS TO THE STOCKS.

- Patented June 6, 1893.

- 7, a transverse-section cutting on line m-a: of Fig. 2. V

This invention relates to an improvement WILLIAM MASON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO THE WINCHESTER REPEATING'ARMS'COMPANY, OF PLACE.

lMEANSfFOR SEPARABLY ATTACHING GUN-BARRELS TO THE STOCKS.

SPECHICATION forming of Patent N 0. 498,983, dated June 6, 1893.

Application filed October 31, 1892.- Serial No. 450.510. (No model.)

T at whom it may concern:

Be it known that I, WILLIAM MASON, of New Haven, in the county of New Haven and State of Connecticut, have invented anew Improvement in Fire-Arms; and I do hereby declare the following-{when taken in connection with accompanying drawings and the letters-0f reference marked thereon, to be'a full, clean-and. exact description of the same, and which said gaging the receiver; Fig. 3, the same representing the bolt as withdrawmto disengage the two parts;'iFig. -4,a side viewof the joint portion of "the two parts separated; Fig. 5, 'a rear face view of the barrel and bolt portion; Fig. 6, a front face viewof the receiver; Fig.

in that class of fire-arms in which the barrel is made readily detachable from the receiver, so that' the barrel may be conveniently detached for the purpose of "packing of transportation, the object of the invention being a simple construction, whereby the barrel may go be readily detached, and firmly secured when 'in connection with the receiver, and the invention consists in' the construction as here-- inafter described and particularly recited in the claims.

3; "A, represents the receiver, to' which the' stock B, is attached in the usual manner.

- 0; represents the barrel. The barrel is connected to the forward end of the receiver by any suitable jointwhichwillpermit the ready 4'0 detachment or .re-engagement of the barrel; "as here represented this engagement is produced by constructing'the rear end of the barrel 0, with sectional screw-threads D D, which extend partially around that rear end 4 portion of the barrel, and so as to leave spaces between the respective sections of screwthreads. The opening into the receiver A, is

constructed with sectional screw-threads E E,-

which correspond in length to the clear spaces between the sectional threads D D, on the barrel, and so as to'loagve spaces F F, between the; sectional threads in the receiver, correspondiug'in length substantially to the sections of threads on the end of the barrel, the

position of the sections of threads on the two parts corresponding with each other when the barrel is in-the proper relation to-the receiver.

In introducing the barrel to the receiver,- it is I turned partially around from its normal position, so as to bring the sections D D of the threads of "the barrel into line with the spaces F F, in the receiver, then the barrel is inserted into its place, and a partial turn brings the sectional threads D, of the barrel into en- .gagement with the sectional threads E, of-the receiver, and so as to interlock firmly therewith. The sectional screw-threads' thus described are a common and well known interlocking joint for the engagement of two parts in mechanical structures, and for which other.

equally well known joints may be substituted.

G, represents the magazine-tube, which. is arranged under the barrel, in the usual manner, and extends through aband H at the rear, this band being secured to or made a part of the barrel, and so as to form a support for that end of the tube. vAt that end the tube is screw-threaded, preferably with a quick thread, as represented, and the band is correspondingly. screw-threaded, so that the .tubemay be rotated to project the end from the band, as represented in Fig. 2, or draw it into the band, as seen in Fig. 3. Near the outer end of the barrel the tube is supported in a band I, but sons to permit its rotation. 'In the end of the tube a lever J, is hung, upon a pivotK, and so as to-swingagainst the surface of the tube, as seen in Fig. 2, or be turned therefrom, as represented in broken lines in thesame figure, and as also seen in Fig. 3. Thehub-of thelever J, is-constructed with a nose L, which,-when the lever is turned against the tube, as seenin Fig. 2, will enter a correspondingnotch M, in the barrel, as seen in Figs. 2and 7, but when the lever'is turned away, as represented in broken lines Fig. 2, the nose of the lever will be withdrawn from engagement with the barrel, and so as to leave the tube free. In the disengaged position the lever serves as a handle by which the tubemay be conveniently turned, and

such turning will, because of the screw thread on the tube, impart to it a longitudinal movement, according to the direction in which the tube is turned. When the barrel is set in place in the receiver, as first described,-and the threads interlocked by the-rotation of the barrel, such rotation will bring the tube G, into line with a corresponding opening N, into the forward end of the receiver, as seen in Fig. 2, and the projection of the tube into the receiver, locks thepa'rts together so as to prevent the rotation of the barrel, and when the parts are so locked, the lever J, is turned to interlock the tube with the barrel at the forward end, so as to prevent accidental rotation of the'tube, and when the parts are-- ceiver, andthen the barrel may be readily withdrawn, and as seenin Fig. 4, to separate the two parts. A spring-stop O, is arranged in the tube, to yieldingly engage the lever J, in either of its two positions, so as to preventa ccidental movement of the lever.

To provide against wear of thejoint between the barrel and the receiver which mig it occur by frequent separation and attachment or the parts, sct-screws l, more or lcssin number, are inserted into the face of the band, as represented in Figs. 4 and 5, the heads of the;

screws being normally flush with the face of the part into which they are introduced. Should wear occur so as to loosen the joint, the-screws are withdrawn so far as, to bring the heads on the one part to bear against the face of the other part when the two parts are in their proper relation to each other.

The tube G, which serves as the bolt to lock the two parts together, may be the magazinetube of a magazine gun, or it may be a rod or tube applied for the sole purpose .or the interlocking of thetwo parts, the invention is therefore applicable alike both to magazine and Single loaders, and while to make the tube rotatable and screw-threaded so that itslongitudinal movement will be produced by the said screw-th read is preferred, it may be adapted to slide longitudi nally without such screwthread, the locking engagement between the barrel and the tube being sufiicient to retain thetube in its engaged position. 'VVhile therefore I have used the term tube in describ ing the invention, it is a longitudinally movable bolt .so far as the engagement of the two parts is concerned, and it is to be understood that such longitudinally moving bolt-is not to be limited to the tube of a magazine gun, or to the rotation of the tube or bolt The adj listing-screws are represented-as on 'the rear face of the barrel portion, but it will be understood that they may be arrangedin the front face of ,the receiver with the same result, and it. will also be understood that these adj listing-screws are alike applicable to any locking device by which the barrel is secured to prevent its rotation, the set-screwsin any case serving as a desirable means of take-up between the faces of the two parts.

The interlocking device which is illustrated as between the bolt and barrel, is one well adapted for the purpose, but it will be understood that, any suitable locking device. may be used which will engage the bolt with the barrel when the parts are set together andso as to prevent the longitudinal or rotative movement of the bolt.

I do not broadly claim in this application the use of devices located between the abutting faces'of the barrel and receiver to take up the wear thereof, bi1t only the particular construction shown and described.

I claim- 1.- In agun having the barrel detachable from the receiver by a partial rotation: of the barrel, the combination therewith of a boltarr'anged below the barrel and supportedby. it, but free for longitudinal movement, the receiver constructed with a recess in its forward end corresponding to the rear end of .the said bolt, and into which said bolt is adapted to be projected. and withdrawn, with means for interlocking the said bolt with the barrel when the-bolt'is engaged with the receiver, substantially as described.-

2. In a gun havi'ngthe barrel detachable from the receiver by a partial rotation of the barrel, the-combination therewith of a bolt arranged below the barrel, and supported by it, the boltadaptedfor both longitudinal and rotative movement, the forward end ofthe receiver constructed with a recess into which the rear end of the bolt is adapted to project, the bolt screw-threaded through its support, and adevice substantially such as described for interlocking the boltwith the barrel, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

, WILLIAM MASON. Witnesses:

DANIEL H. VEADER,

A. W. EARLE. 

